Lets represent the given data in tabular format for ease:
Summary of the Recent Fiscal Year
|
Annual Revenue(in billion $) |
Net Profit (in billion $) |
Acme |
138 |
8 |
Nadir |
87 |
5 |
Quixote |
111 |
13 |
For the sake of convenience lets call them N,A and Q respectively
a) N has smallest net profit ↔ A has the largest annual revenue
We need to see if both of these are true together or both must be false together to make the $wff$ True
Since both the atomic propositions are true so the $wff$ of option a is also true.
b)N has the lowest net profit ( 5 billion dollars ) and A has the largest annual revenue so this $wff$ is also true
c) Q has the largest net profit ( 13 billion dollars ) and A has the largest annual revenue so this $wff$ is also true
d)Q doesnt have the smallest net profit so the premise or the anticedant of this $wff$ is false and we know that $ F → anything$ is always true
So this is also true
Correct answers are a,b,c,d.